• HOME
  • QUIZ
  • CONTACT US
EXAMIANS
  • COMPUTER
  • CURRENT AFFAIRS
  • ENGINEERING
    • Chemical Engineering
    • Civil Engineering
    • Computer Engineering
    • Electrical Engineering
    • Mechanical Engineering
  • ENGLISH GRAMMAR
  • GK
  • GUJARATI MCQ

Waste Water Engineering

Waste Water Engineering
If the depletion of oxygen is found to be 5 ppm after incubating a 2.5% solution of sewage sample for 5 days at 21°C, B.O.D. of the sewage is

150 ppm
50 ppm
100 ppm
200 ppm

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
A sewer pipe contains 1 mm sand particles of specific gravity 2.65 and 5 mm organic particles of specific gravity 1.2, the minimum velocity required for removing the sewerage, is

0.45 m/sec
0.40 m/sec
0.35 m/sec
0.30 m/sec

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
If the depletion of oxygen is found to be 2.5 mg/litre after incubating 2.5 ml of sewage diluted to 250 ml for 5 days at 20°C, B.O.D. of the sewage is

250 mg/l
50 mg/l
100 mg/l
150 mg/l

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
The gradient of sewers depends upon

All listed here
Discharge
Velocity of flow
Diameter of the sewer

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
The grit chambers of sewage treatment plants, are generally cleaned after

7 days
14 days
12 days
2 days

ANSWER DOWNLOAD EXAMIANS APP

Waste Water Engineering
In sewers the effect of scouring is more on

Bottom side
Top side
Horizontal side
All sides

ANSWER DOWNLOAD EXAMIANS APP
MORE MCQ ON Waste Water Engineering

DOWNLOAD APP

  • APPLE
    from app store
  • ANDROID
    from play store

SEARCH

LOGIN HERE


  • GOOGLE

FIND US

  • 1.70K
    FOLLOW US
  • EXAMIANSSTUDY FOR YOUR DREAMS.
  • SUPPORT :SUPPORT EMAIL ACCOUNT : examians@yahoo.com

OTHER WEBSITES

  • GUJARATI MCQ
  • ACCOUNTIANS

QUICK LINKS

  • HOME
  • QUIZ
  • PRIVACY POLICY
  • DISCLAIMER
  • TERMS & CONDITIONS
  • CONTACT US
↑